Just in time for Christmas, Preservation Houston has begun marketing a new type of Astrodome memorabilia: 4-in. beverage-coaster-sized squares of AstroTurf removed from the stripped-down stadium — along with loads of other major league hardware — in October 2013. Each one bears “a unique serial number and a certificate of authenticity,” according to the seller, and they come in packs of 4 that cost $100, plus tax. (That’s more than a 200-percent price hike since the last big Astrodome yard sale 5 years ago offered up 12-in.-by-12-in. squares for $20 each.)

During the lead-up to the defeated 2013 bond proposal that would have paid for extensive renovations to the Astrodome, these particular patches of turf road along with staffers from the National Trust onboard the “Dome Mobile,” a 26-ft. truck that the preservationist organization commandeered as part of a public campaign to save the building from demolition. It wasn’t until afterward that Preservation Houston got its hands on them en masse. Shipments of the items, it now says, should be delivered to buyers no later than December 17.